*
*/
#include <linux/delay.h>
-#include <linux/io.h>
#include <linux/slab.h>
#include "./common.h"
#include "./pipe.h"
/*
* macros
*/
-#define usbhsp_priv_to_pipeinfo(pr) (&(pr)->pipe_info)
-#define usbhsp_pipe_to_priv(p) ((p)->priv)
-
#define usbhsp_addr_offset(p) ((usbhs_pipe_number(p) - 1) * 2)
-#define usbhsp_is_dcp(p) ((p)->priv->pipe_info.pipe == (p))
-
#define usbhsp_flags_set(p, f) ((p)->flags |= USBHS_PIPE_FLAGS_##f)
#define usbhsp_flags_clr(p, f) ((p)->flags &= ~USBHS_PIPE_FLAGS_##f)
#define usbhsp_flags_has(p, f) ((p)->flags & USBHS_PIPE_FLAGS_##f)
*/
static void usbhsp_pipectrl_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
int offset = usbhsp_addr_offset(pipe);
- if (usbhsp_is_dcp(pipe))
+ if (usbhs_pipe_is_dcp(pipe))
usbhs_bset(priv, DCPCTR, mask, val);
else
usbhs_bset(priv, PIPEnCTR + offset, mask, val);
static u16 usbhsp_pipectrl_get(struct usbhs_pipe *pipe)
{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
int offset = usbhsp_addr_offset(pipe);
- if (usbhsp_is_dcp(pipe))
+ if (usbhs_pipe_is_dcp(pipe))
return usbhs_read(priv, DCPCTR);
else
return usbhs_read(priv, PIPEnCTR + offset);
u16 dcp_reg, u16 pipe_reg,
u16 mask, u16 val)
{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
- if (usbhsp_is_dcp(pipe))
+ if (usbhs_pipe_is_dcp(pipe))
usbhs_bset(priv, dcp_reg, mask, val);
else
usbhs_bset(priv, pipe_reg, mask, val);
static u16 __usbhsp_pipe_xxx_get(struct usbhs_pipe *pipe,
u16 dcp_reg, u16 pipe_reg)
{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
- if (usbhsp_is_dcp(pipe))
+ if (usbhs_pipe_is_dcp(pipe))
return usbhs_read(priv, dcp_reg);
else
return usbhs_read(priv, pipe_reg);
*/
static void usbhsp_pipe_buf_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
{
- if (usbhsp_is_dcp(pipe))
+ if (usbhs_pipe_is_dcp(pipe))
return;
__usbhsp_pipe_xxx_set(pipe, 0, PIPEBUF, mask, val);
*/
static void usbhsp_pipe_select(struct usbhs_pipe *pipe)
{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
/*
* On pipe, this is necessary before
static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe)
{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
int timeout = 1024;
u16 val;
* - "Pipe Control Registers Switching Procedure"
*/
usbhs_write(priv, CFIFOSEL, 0);
- usbhs_fifo_disable(pipe);
+ usbhs_pipe_disable(pipe);
do {
val = usbhsp_pipectrl_get(pipe);
return -EBUSY;
}
-static int usbhsp_pipe_is_accessible(struct usbhs_pipe *pipe)
+int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe)
{
u16 val;
}
}
-void usbhs_fifo_disable(struct usbhs_pipe *pipe)
+void usbhs_pipe_disable(struct usbhs_pipe *pipe)
{
int timeout = 1024;
u16 val;
} while (timeout--);
}
-void usbhs_fifo_enable(struct usbhs_pipe *pipe)
+void usbhs_pipe_enable(struct usbhs_pipe *pipe)
{
/* see "Pipe n Control Register" - "PID" */
__usbhsp_pid_try_nak_if_stall(pipe);
usbhsp_pipectrl_set(pipe, PID_MASK, PID_BUF);
}
-void usbhs_fifo_stall(struct usbhs_pipe *pipe)
+void usbhs_pipe_stall(struct usbhs_pipe *pipe)
{
u16 pid = usbhsp_pipectrl_get(pipe);
}
}
-/*
- * CFIFO ctrl
- */
-void usbhs_fifo_send_terminator(struct usbhs_pipe *pipe)
-{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
-
- usbhs_bset(priv, CFIFOCTR, BVAL, BVAL);
-}
-
-static void usbhsp_fifo_clear(struct usbhs_pipe *pipe)
-{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
-
- usbhs_write(priv, CFIFOCTR, BCLR);
-}
-
-static int usbhsp_fifo_barrier(struct usbhs_priv *priv)
-{
- int timeout = 1024;
-
- do {
- /* The FIFO port is accessible */
- if (usbhs_read(priv, CFIFOCTR) & FRDY)
- return 0;
-
- udelay(10);
- } while (timeout--);
-
- return -EBUSY;
-}
-
-static int usbhsp_fifo_rcv_len(struct usbhs_priv *priv)
-{
- return usbhs_read(priv, CFIFOCTR) & DTLN_MASK;
-}
-
-static int usbhsp_fifo_select(struct usbhs_pipe *pipe, int write)
-{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
- struct device *dev = usbhs_priv_to_dev(priv);
- int timeout = 1024;
- u16 mask = ((1 << 5) | 0xF); /* mask of ISEL | CURPIPE */
- u16 base = usbhs_pipe_number(pipe); /* CURPIPE */
-
- if (usbhsp_is_dcp(pipe))
- base |= (1 == write) << 5; /* ISEL */
-
- /* "base" will be used below */
- usbhs_write(priv, CFIFOSEL, base | MBW_32);
-
- /* check ISEL and CURPIPE value */
- while (timeout--) {
- if (base == (mask & usbhs_read(priv, CFIFOSEL)))
- return 0;
- udelay(10);
- }
-
- dev_err(dev, "fifo select error\n");
-
- return -EIO;
-}
-
-int usbhs_fifo_prepare_write(struct usbhs_pipe *pipe)
-{
- return usbhsp_fifo_select(pipe, 1);
-}
-
-int usbhs_fifo_write(struct usbhs_pipe *pipe, u8 *buf, int len)
-{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
- void __iomem *addr = priv->base + CFIFO;
- int maxp = usbhs_pipe_get_maxpacket(pipe);
- int total_len;
- int i, ret;
-
- ret = usbhsp_pipe_is_accessible(pipe);
- if (ret < 0)
- return ret;
-
- ret = usbhsp_fifo_select(pipe, 1);
- if (ret < 0)
- return ret;
-
- ret = usbhsp_fifo_barrier(priv);
- if (ret < 0)
- return ret;
-
- len = min(len, maxp);
- total_len = len;
-
- /*
- * FIXME
- *
- * 32-bit access only
- */
- if (len >= 4 &&
- !((unsigned long)buf & 0x03)) {
- iowrite32_rep(addr, buf, len / 4);
- len %= 4;
- buf += total_len - len;
- }
-
- /* the rest operation */
- for (i = 0; i < len; i++)
- iowrite8(buf[i], addr + (0x03 - (i & 0x03)));
-
- if (total_len < maxp)
- usbhs_fifo_send_terminator(pipe);
-
- return total_len;
-}
-
-int usbhs_fifo_prepare_read(struct usbhs_pipe *pipe)
-{
- int ret;
-
- /*
- * select pipe and enable it to prepare packet receive
- */
- ret = usbhsp_fifo_select(pipe, 0);
- if (ret < 0)
- return ret;
-
- usbhs_fifo_enable(pipe);
-
- return ret;
-}
-
-int usbhs_fifo_read(struct usbhs_pipe *pipe, u8 *buf, int len)
-{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
- void __iomem *addr = priv->base + CFIFO;
- int rcv_len;
- int i, ret;
- int total_len;
- u32 data = 0;
-
- ret = usbhsp_fifo_select(pipe, 0);
- if (ret < 0)
- return ret;
-
- ret = usbhsp_fifo_barrier(priv);
- if (ret < 0)
- return ret;
-
- rcv_len = usbhsp_fifo_rcv_len(priv);
-
- /*
- * Buffer clear if Zero-Length packet
- *
- * see
- * "Operation" - "FIFO Buffer Memory" - "FIFO Port Function"
- */
- if (0 == rcv_len) {
- usbhsp_fifo_clear(pipe);
- return 0;
- }
-
- len = min(rcv_len, len);
- total_len = len;
-
- /*
- * FIXME
- *
- * 32-bit access only
- */
- if (len >= 4 &&
- !((unsigned long)buf & 0x03)) {
- ioread32_rep(addr, buf, len / 4);
- len %= 4;
- buf += rcv_len - len;
- }
-
- /* the rest operation */
- for (i = 0; i < len; i++) {
- if (!(i & 0x03))
- data = ioread32(addr);
-
- buf[i] = (data >> ((i & 0x03) * 8)) & 0xff;
- }
-
- return total_len;
-}
-
/*
* pipe setup
*/
};
int is_double = usbhsp_possible_double_buffer(pipe);
- if (usbhsp_is_dcp(pipe))
+ if (usbhs_pipe_is_dcp(pipe))
return -EINVAL;
/*
/* DIR */
if (usb_endpoint_dir_in(desc))
- usbhsp_flags_set(pipe, IS_DIR_IN);
+ usbhsp_flags_set(pipe, IS_DIR_HOST);
if ((is_host && usb_endpoint_dir_out(desc)) ||
(!is_host && usb_endpoint_dir_in(desc)))
dir |= DIR_OUT;
+ if (!dir)
+ usbhsp_flags_set(pipe, IS_DIR_IN);
+
/* SHTNAK */
if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_BULK) &&
!dir)
const struct usb_endpoint_descriptor *desc,
int is_host)
{
- struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
- struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+ struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
struct device *dev = usbhs_priv_to_dev(priv);
int pipe_num = usbhs_pipe_number(pipe);
int is_double = usbhsp_possible_double_buffer(pipe);
*/
int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe)
{
- u16 mask = usbhsp_is_dcp(pipe) ? DCP_MAXP_MASK : PIPE_MAXP_MASK;
+ u16 mask = usbhs_pipe_is_dcp(pipe) ? DCP_MAXP_MASK : PIPE_MAXP_MASK;
usbhsp_pipe_select(pipe);
return usbhsp_flags_has(pipe, IS_DIR_IN);
}
+int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe)
+{
+ return usbhsp_flags_has(pipe, IS_DIR_HOST);
+}
+
void usbhs_pipe_clear_sequence(struct usbhs_pipe *pipe)
{
usbhsp_pipectrl_set(pipe, SQCLR, SQCLR);
return pipe;
}
-void usbhs_pipe_init(struct usbhs_priv *priv)
+void usbhs_pipe_init(struct usbhs_priv *priv,
+ void (*done)(struct usbhs_pkt *pkt))
{
- struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
+ struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
+ struct device *dev = usbhs_priv_to_dev(priv);
struct usbhs_pipe *pipe;
int i;
+ if (!done) {
+ dev_err(dev, "no done function\n");
+ return;
+ }
+
/*
* FIXME
*
usbhsp_flags_init(pipe);
pipe->mod_private = NULL;
+ INIT_LIST_HEAD(&pipe->list);
- usbhsp_fifo_clear(pipe);
+ /* pipe force init */
+ usbhsp_pipectrl_set(pipe, ACLRM, ACLRM);
+ usbhsp_pipectrl_set(pipe, ACLRM, 0);
}
+
+ info->done = done;
}
struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv,
return NULL;
}
- usbhs_fifo_disable(pipe);
+ INIT_LIST_HEAD(&pipe->list);
+
+ usbhs_pipe_disable(pipe);
/* make sure pipe is not busy */
ret = usbhsp_pipe_barrier(pipe);
pipebuf = usbhsp_setup_pipebuff(pipe, desc, is_host);
pipemaxp = usbhsp_setup_pipemaxp(pipe, desc, is_host);
- /* buffer clear
- * see PIPECFG :: BFRE */
- usbhsp_pipectrl_set(pipe, ACLRM, ACLRM);
- usbhsp_pipectrl_set(pipe, ACLRM, 0);
-
usbhsp_pipe_select(pipe);
usbhsp_pipe_cfg_set(pipe, 0xFFFF, pipecfg);
usbhsp_pipe_buf_set(pipe, 0xFFFF, pipebuf);
usbhsp_pipe_select(pipe);
usbhs_pipe_clear_sequence(pipe);
+ INIT_LIST_HEAD(&pipe->list);
return pipe;
}
void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe)
{
- WARN_ON(!usbhsp_is_dcp(pipe));
+ WARN_ON(!usbhs_pipe_is_dcp(pipe));
- usbhs_fifo_enable(pipe);
+ usbhs_pipe_enable(pipe);
usbhsp_pipectrl_set(pipe, CCPL, CCPL);
}
-
/*
* pipe module function
*/
int usbhs_pipe_probe(struct usbhs_priv *priv)
{
- struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
+ struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
struct usbhs_pipe *pipe;
struct device *dev = usbhs_priv_to_dev(priv);
u32 *pipe_type = usbhs_get_dparam(priv, pipe_type);
void usbhs_pipe_remove(struct usbhs_priv *priv)
{
- struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
+ struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
kfree(info->pipe);
}
git.openpandora.org / pandora-kernel.git / blobdiff